VSS and speedo gear help please!

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Nov 2, 2007 | 07:13 PM

TIMMYS89GTA

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From: ocklawaha FL.

Car: 81z-28,89gta,91z-28 03 1500

Engine: 355,L98vette tpi,327

Transmission: TH350/700R4/700r4/4l80E

Axle/Gears: 3;73/3;27/2;73/3;73

VSS and speedo gear help please!

OK,I have a 700r4 that came out of a 88 firebird.The speedo gears are red I believe the drive gear has 17 teeth.I have put this trans. in my 89 gta which has also been converted to the 90-92 style speed density TPI.I knew I had to replace the speed sensor in the trans. which I did,but I think I got the wrong one.Does anyone know right off hand which vss I need and if I need to change the speedo gears.The car has a 3;27 posi-disc rear.

Nov 2, 2007 | 09:36 PM

TIMMYS89GTA

Thread Starter

Supreme Member

iTrader: (28)

Joined: Jul 2006

Posts: 1,564

Likes: 2

From: ocklawaha FL.

Car: 81z-28,89gta,91z-28 03 1500

Engine: 355,L98vette tpi,327

Transmission: TH350/700R4/700r4/4l80E

Axle/Gears: 3;73/3;27/2;73/3;73

Re: VSS and speedo gear help please!

ANYONE?I really want this car going soon.

Nov 2, 2007 | 09:41 PM

87zjeff

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From: louisville, ky

Axle/Gears: '01 3.42 10 bolt

Re: VSS and speedo gear help please!

go here:

http://www.transmissioncenter.net/highperf700r4.htm

go about 3/4 of the way down the page to #55 and #55xx.
#55 you want the 45 tooth one for your rear end and the drive gear you have in your tranny.
#55xx is the speed sensor you need for the 90-92 speed density set-up.

Last edited by 87zjeff; Nov 2, 2007 at 09:43 PM. Reason: added more info